Combination radio and phonograph apparatus



' Dec. 27; 1927. 7 1,653,725

F. OBERST COMBINATION RADIO AND PHONOGRAPH APPARATUS Filed Sept. 6, 1924 2 Sheets-Sheet l E WWI.

COMBINATION RADIO .AND PHONOGRAPH APPARATUS Filed Sept. 6. 1924 2 Sheets-Sheet 2 T .26 INENTOR r I Patented Dec. 27, 1927.

UNITED STATES PATENT QFFICE.

FRANK OBERST, OF NEW YORK, N. Y., ASSIGNOR TO SONORA PHONOGRAPH COMPANY,

INC., A CORPORATION OF NEW YORK.

COMBINATION RADIO AND PI IONOGRAPH APPARATUS.

Application filed September 6, 1924. Serial No. 736,232.

This invention relates generally to a combined phonograph and radio receiving set, and more particularly to an instrument in which the phonograph and radio receiving set are contained in the same cabinet, and

the employment in such combination of eleof mechanism whereby thesound amplifying portions of a phonograph can be employed as a common amplifier for ampllfying audio frequency in connection with radio receiving apparatus and forsound reproduction from a phonograph record.

One of the objects of my invention is the construction of a combined. phonograph and radio apparatus, utilizing a common amplifier having means to connect or disconnect the radio sound producing means or the phonograph producing means from the said amplifier.

A further object of my invention is to provide a simple, rugged device which will allow the playing and amplification: of phonograph sounds in the usual way, wlthout any tone losses, and by an easy manipulation at the will of the operator, the same phonograph horn maybe used to amplify a radio reproducer also without tone losses.

Another object of my invention is to provide a device which, when manipulated at the. will of the operator, will, by valve action, interrupt the free passage of sound" from the phonograph reproducer to the horn, and simultaneously open a freepassage for the sound from the radio reproducer and With a manual movement in the.

opposite direction will produce a reverse simultaneous result.

A further object of my invention is to provide a simple device subject to the will and easy manual control of the operator, whereby the volume of sound issuing from the horn or amplifier, produced either by the phonograph or radio reproducer, may be progressively increased to the maximum ability of either reproducer, or decreased to a mere whisper, or either reproducer may be shut ofi' entirely. All these effects may be secured without any tone losses whatsoeveryexceptsuch tone losses as are brought about at the express desire of the operator;

which the same h'orn may be used for both i purposes.

Another object is to provide an instrument in which the receiving set and the phonograph are compactly arranged in a cabinet of attractive appearance. The combining of these elements is to economize space'and to utilize an amplifier for both purposes. I i I Another object of the invention is to provide an improved combination phonograph and radio, which will be compact, simple in construction, economical to manufacture, eliicient in operation, attractive in appearance'and inexpensive to manufacture.

Withthese and other objects in view, to be more fully set forth hereinafter, the invention consists in the novel construction, combination of elements, and arrangement of parts, which will be exemplified in the operation and construction herein described in the'following specification and illustrated in the accompanying drawings.

The invention will first be described in connection with the accompanying drawings,.vvherein similar reference characters are used to designate corresponding parts throughout the several views, and more specifically defined and indicated in the ap-.

pended claims.

Attention is directed which to the drawings in Figure 1 is a front elevation of myinvem tion mounted ina cabinet containing a phonograph and a radio receiving set, with the front panel of the cabinet removed and va rious parts broken away to show the. arrangement of the elements.

Figure 2 is aiplan view of the same with p the top of the cabinet removed.

Mil

' therein.

a main vertical partition 2' ltadioasection 3 is divided by horizontal partition 5 into chamber 6 for the radioreceiving gset 8,,andi chamber 7 for the batteries 9 (Figs. 1 and 2). P lO lQgraphfieetiolflydiis divided byxthe horizontal; partition 10, commonly calledi: the; motoreboardfi into; chfamberrll; and? chameher-212:1. Chamber 11.; contains theeusuat phonograph elements found alcoves the: motoreboardfi namelytone-arm;13'-cto:wh:ioh

is secured phonographz-reproducen '14 adapts ed to play :v on-xrecord (not ashown) "plzacedrionl turnetable; 15.2, In: chamber-1 121:5 is: honsedr.

what-TI; call the soundsztransterz chamber-516$. spring motor box: :17 containing i'tllQiDlRE-fill':

mg parts for turning the plionograph'ztnrn'a table 15 and" oranlr '18 for windingihermotor.

' AlSOfthE ZUTIPllfiQ-P orqhorn r19 leadingga'fromn sound transfer "chamber =16 to large-opening Suspended and-fastened to therunderside t :chamber 16 infrontol the cabinet asshown.

is a radio rep-roducer arm QOtllWOtlflQEzCllCl' of I which has secured; radiocreproducerv 21 wired'sto radio; receiving set 8 i by, suitable wiring not shown) a.

Having now: generally: located f the el'e-a ments I will new:'proceedtzwithua:detaild'eex scription ofmy invention with particular reference: tmFigss 2 :to- 6 Cabinet 1' has 1 rea1h-panel'12 l- (Figs. 2, 1an'd- 6) :to whichris; firmly afiiiredchamber-l6z which is innetlect: a rectangular box-like structure having. bot tom; 25; sides :26; end; 27 ends 28 -andi'wi-the motor-board forming lLlIGJ-Il/GPQ which: has opening 29swit=l12 collarr30- firmly-secured Mounted in this collar 30-,- sofas tofreely swing in a horizontalplane; in: the usual: manner, is-phonograph"tone=arm 1'31 Adjacent end piece 28-hassmalh:openingw3li tov permit the passage oii control rod: Q2Wl1llei adjacent bottom-member 25:11as largezopene ing 32 in which is'secured the largez-end-uoi radio reproducer-:anm Bottom anenibbr also has large opening;33::innwhichnis see: cured: the small endrof gthe;amphfirprrhorn f 19; as will bereadilyunderstooda Slidingwithr agclose fit-in: chamber :16 (by: means :of 'cut out :pontionsySli (Fig; 6) in; sides 26 is '&'Clid&l'V&lV qmembera comprising-1 horiaontal; slide;;valve 35;, with. opening 36 adapted tovalignu itlr opening 29easashown; inFigi; 3. Securedto slide-valve;fl'fivisav-entii cal gate. valve 37, having; fastened thereto flanged: piece 38:;firmly anchoring oneend iof control rod 22; To allow-itl'ie necessary gfull: horizontal movement ;of; slide-Waive .a35 pan-1 Passing:intochamber": loiis manual -CO11'tIOl 1"Od 22 .toErtheotheraend otrfwhic'his fastened hand butt on'::28 for 500111 veniencec-in manipulating. theicontrol' rod-22x.

tition--2 is slotted as at End-member 28 serves as: a stop: to. limit the outward movement of the dual-valve, it being understood that any form of stop maycbeenl loyed such. as awood-Lscreworsmallwooden piece for the purpose. If'a soundproof joint is de sired, feltioraothersound absorbing material (not shown) may be inserted between the uppenfacebf .slizdeevalve 35 and the lower face of motor-board 10.

Grate Nalve BZ forming one piece with'slide valve 35dany manipulation of control .rod 22:; bytmeansnfrbutton 23 willaniovebothwalves; simultaneously; and: too the same extent in; either. direction as, will bes readily under: stood." c

My:dnvicezoperatesi'z as ;follows.; If it 1* is; desired to.usestheiiphonograph; control rod: 22': lS-p1lSl1GlJ521Sf2Lli as possible'into: thecabinetg. by;1nnanseofixbuttom23i Thispositionscthe dH'EtL-iVfil'YB::3=S-iSliQWl1S.lI1YEdg., 3;: and-provides: a clear, uninterrupted-- and; continuousspasasage r-fon the-phonographi-sound through-1 the-n phonograph: toneearnr; 18-; aligned: openings; 29rand" 36; into the chamber: 16*; mama through the opening 83- into the l10lIl1l92'. It will betnoticeduthat with. the dual-valve inn 1 this. position gate-valve; 3'??- is closed: and

offers bill practically :soundeproof obstruction to" keep extraneoussounds arising in z the. radios reproduces from reaching horno 19,? and? trappinggsame zinrdead {space in chains.- ber 2161; To: modify the; 5 volume 10ft; phonoe graph sound it is only necessary toosloivlywithdraw the-control: rod 22 tromthecabinet, thiis moving opening 536:. outaof line with the opening; 29.; reduci-ngz; the sorilice .=32xthe. do; sinedfdegree.v

1n accondance with ,tlifil provision of; the-- patent statutescl liavetdescribed my inven-v tion together a with; the *OODStlUCtiOli-z which; s nowvconsiden :to represent. the K best; rembodi x menti thereof; but '1' desire it understood: that my invention: is snot icOnfilleClitOit-he :panticuea larrformr' shown andwdescribed, th'ersame be-L ing; =merely 'illnstrative and: that/the invens tion can be'icarried'out innothen:ways withe out departing-front the-:spinit of-amy inventti-ongrandgttliereforey: I claim. broadly the right -f' tonemploy" alil equivalent zzinstrumentaliti'e'sooming 1 within the e scope of the tap pended claims, and by means qofwhichiob jeetsdofiimyninventiron re :atta fined; and new resultsaccomplished; as *hereinnset forth; as; it i s obvious that the p articular embodiments: herein shown and desoribedare only sonre of" ma ny that cam-tbeiempl'oyeddo attains-theseobjectstand: accomplish :these: :results.':.

I-Iavingsnow described: my in'ventionawhat If. clai1n:and-:desine;to= secure day Letters Pas ent,;is;:-.i:.-- I

11-; In: arsound transfer amplifying device; i115 combinat=ion-,.- a chamber," a, dual valve therein, comprisingaa slide :valve and gate Valera -,sa-icln$valvesrmanually I operable by a;

control member, to move simultaneously to cover one opening while uncovering another, and by a reverse movement of said control member, to simultaneously uncover the first named opening while covering the second 2. In a sound transfer amplifying device,

in combination, a chamber, a sliding valve therein, adapted to modify sound from one source, while a gate valve therein excludes from another source, both valves being manuallyoperable simultaneously to produce a reverse result.

v 3. In a device of the character described, a sound transfer chamber, an amplifier and a pair of sound tubes opening into said chamber, one of said tubes occupying a position spaced from the end walls of said chain her, and a'partition for said chamber movable alternatively to either side of said sound tube whereby sound waves from said tube may be alternatively directed toward the amplifier or isolated therefrom.

4. In a device of the character described. a sound transfer chamber, an amplifier and a pair of sound tubes opening into said chamber, one of said tubes opening approximately opposite the amplifier and the other tube openingin a location offset from said amplifier, and a suitable partition slidable in said chamber alternatively from a position beyond said second tube, relative to said amplifier, to a position between said second tube and said amplifier whereby sound Waves from said second tube may alternatively have access to said amplifier or be cut ofi therefrom.

5. In a device of the character described, a rectangular sound transfer chamber, an amplifier opening in one side of said cham' her, a sound tube opening in the same side of said chamber, but off-set from said amplifier opening, a second sound tube opening in ond tube opening into the upper wall of said chamber approximately opposite said a1nplifier opening, said second tube connecting a phonograph tone arm to said chamber, an L-shaped valve slide movable in said chamber, said valve slide having a perforate gate slidable along the top wall of the chamber and an imperforate gate closing an enu of the chamber, means by which said valve slide may be moved in said chamber, a movement of said slide in one direction, shutting ofi' said tone arm tube from said chamber, and a movement in the opposite direction isolating said telephone receiver tube from said chamber.

FRANK OBERST. 

